I know someone who got nailed with a counterfeit drug. It was a very real looking bottle of Synthroid, and provided through a major HMO. Ironically, she had to get her blood checked a few weeks later prior to surgery, and she came up very low.
She said the HMO pharmacy staff were horrified, because they knew the corporate wrath was about to descend. Their lives got a whole lot more complex. Literally everybody who had anything to do with that drug lot was grilled, up through the distribution to the manufacturer.
Now why would Brits be ordering prescription drugs from Belize? Don’t they have a wonderful NHS?